Home / 15,744.38-21,724.08-11,966.54

Finding the Fourth Proportional to 15,744.38, 21,724.08 and 11,966.54

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Solution

The fourth proportional to 15,744.38, 21,724.08 and 11,966.54 is: 16,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.38 : 21,724.08 = 11,966.54 : x
  2. Step 2: Convert to fraction form
    15,744.38/21,724.08 = 11,966.54/x
  3. Step 3: Cross multiply
    15,744.38x = 21,724.08 × 11,966.54
  4. Step 4: Simplify right side
    15,744.38x = 259,962,072.28
  5. Step 5: Solve for x
    x = 259,962,072.28/15,744.38
  6. Step 6: Final answer
    x = 16,511.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.